Turning an eight-minute AutoCAD workflow into a three-second tool

Print-pack preparation combined image capture, boundary selection, text fields, drawing preparation, and print operations. Completing that sequence manually took approximately eight minutes.

Reversed floor plans created a second challenge: whole drawings had to be transformed without leaving geometry or structural elements in the wrong place.

The tools had to operate on complete manufactured-home drawings used in daily production preparation. Different AutoCAD entities did not respond identically to a simple mirror operation, and some blocks used shifted origins.

• Preserve the intended relationship between drawing entities.
• Handle object-specific translation, reflection, and rotation rules.
• Correct in-wall structural elements after the broader transformation.
• Work with proprietary production drawings that cannot be shown publicly.

Michael gathered requirements from engineering and office personnel, then broke the manual process into repeatable operations that could be represented as a command path.

For whole-drawing mirroring, he classified entities and derived the reference geometry and centerlines needed to decide how each object should move. This made the transformation rules explicit instead of relying on a single generic mirror command.

Michael built a 2,000+ line AutoLISP application that automated the print-pack workflow. A separate whole-drawing tool applied entity-specific translation, reflection, and Z-axis rotation, accounted for shifted block origins, and repositioned structural elements that required correction after transformation.

The measured print-pack workflow fell from approximately eight minutes to about three seconds. The mirroring automation removed the need to redraw reversed floor plans, and the tools were maintained for day-to-day engineering and office workflows.

The source drawings and internal production content are proprietary, so they are not reproduced in this portfolio. The case study is limited to the documented workflow, implementation approach, and measured timing result.